A reminder: if I notice them, comments that I regard as factually false or as rhetorically destructive to the ongoing conversation will get deleted, if I notice them--I don't have time to moderate this properly, but I am trying. I am anxious to run an informative seminar. I am not enthusiastic about hosting a foodfight.
The place to comment on the comment policy is here: http://delong.typepad.com/sdj/comment-policy-a-seminar-.html
An earlier comment policy page: http://delong.typepad.com/sdj/2005/03/dealing_with_tr.html
The best thing on comment policy I have ever read: http://nielsenhayden.com/makinglight/archives/006036.html